Has Fujitsu issued a DAN dare to the networked storage industry, challenging its entire existence?
Fujitsu Laboratories in Kawasaki, Japan, has re-envisioned network storage by implementing it as a disk-area network co-located with CPUs and memory to make multiple configurable servers out of compute and storage pools.
The …

Er, computer?

So...

how exactly is this different from a VM cluster?

Can't you achieve essentially the same results just by, e.g, configuring your SAN as one big VMWare datastore (more likely several datastores, but still...) and managing the disk resources within the VM host infrastructure?